Resonant Spiral Sensor for Wireless Tire Data Collection
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Solution Overview
Problem
Current tire health monitoring systems require multiple dedicated sensors for each parameter, increasing complexity and cost, and are not capable of wirelessly collecting a variety of tire data using a single component.
Innovation Solution
A wireless system utilizing a geometric-patterned, open-circuit spiral trace sensor that resonates in a magnetic field to collect data on tire characteristics, such as rotational speed, temperature, and health, using a single sensor powered and read by a magnetic field response recorder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple dedicated sensors are used for each tire parameter, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements a single sensor system that performs multiple measurement functions by detecting different characteristics of the tire's rotation. The sensor collects data on rotational speed, temperature, and tire health conditions simultaneously, eliminating the need for separate dedicated sensors for each parameter while maintaining measurement precision through multi-parameter detection capabilities.
Solution Approach 2:
The invention combines multiple sensing functions into a single integrated sensor unit. By merging temperature sensing, rotational speed detection, and tire health monitoring into one device, the system reduces overall complexity while maintaining the ability to measure multiple parameters accurately through unified data collection and processing.
2Measurement precision
If multiple dedicated sensors are used for each tire parameter, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The single multi-functional sensor reduces manufacturing costs by eliminating the need to produce, test, and install multiple separate sensors. The unified design simplifies the manufacturing process while maintaining measurement precision through integrated multi-parameter detection capabilities.
Solution Approach 2:
By combining multiple sensing functions into one device, the invention reduces overall system cost. The merged sensor requires fewer components, simplifies assembly, and reduces inventory requirements, all of which contribute to lower manufacturing costs while maintaining accurate measurement of multiple tire parameters.
3Device complexity
If a single sensor is used to collect multiple tire data types, then device complexity is reduced, but measurement precision may be compromised
Solution Approach 1:
The single sensor maintains measurement precision by being designed to detect multiple physical characteristics of tire rotation simultaneously. The sensor captures rotational speed, temperature, and health indicators through different detection mechanisms integrated within one device, ensuring accurate measurement of each parameter without compromising precision.
Solution Approach 2:
The sensor system transitions from measuring single parameters to capturing multi-dimensional data about tire rotation. By detecting various aspects of rotational motion and physical conditions simultaneously, the system maintains comprehensive measurement precision while simplifying the overall device architecture through unified data collection.
4Ease of operation
If wireless data collection is implemented, then ease of operation is improved, but energy consumption increases
Solution Approach 1:
The wireless sensor system operates using periodic measurement and transmission cycles. The sensor collects tire data continuously but transmits information at intervals, reducing overall energy consumption while maintaining operational effectiveness. This periodic operation allows the system to function wirelessly without requiring constant power transmission.
Solution Approach 2:
The sensor system is designed to harvest energy from the tire's rotational motion itself, converting mechanical energy into electrical energy to power the wireless transmission. This self-powered approach eliminates the need for external power sources or frequent battery replacements, maintaining ease of operation while minimizing energy consumption requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the collection of multiple tire data types wirelessly with a single sensor, reducing system complexity and cost, while providing real-time monitoring of tire health and operational parameters, including rotational speed, temperature, and wear, and can be embedded during tire manufacturing for baseline data establishment.
Implementation Method 1
In the presence of a time-varying magnetic field, the conductor so-shaped resonates to generate a harmonic response having a frequency, amplitude and bandwidth
Implementation Method 2
the conductor so-shaped resonates to generate a harmonic response having a frequency, amplitude and bandwidth
Data Source
AI summary
A wireless system for collecting data indicative of a tire's characteristics uses at least one open-circuit electrical conductor in a tire. The conductor is shaped such that it can store electrical and magnetic energy. In the presence of a time-varying magnetic field, the conductor resonates to generate a harmonic response having a frequency, amplitude and bandwidth. A magnetic field response recorder is used to (i) wirelessly transmit the time-varying magnetic field to the conductor, and (ii) wirelessly detect the harmonic response and the frequency, amplitude and bandwidth, associated therewith. The recorder is adapted to be positioned in a location that is fixed with respect to the tire as the tire rotates.